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HD74LVC74
Dual D-type Flip Flops with Preset and Clear
ADE-205-066C(Z) Rev.3 September 1995 Description
The HD74LVC74 has independent data, preset, clear, and clock inputs Q and Q outputs in a 14 pin package. The logic level present at the data input is transferred to the output during the positive going transition of the clock pulse. Preset and clear are independent of the clock and accomplished by a low level at the appropriate input. Low voltage and high speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation.
Features
* * * * * VCC = 2.0 V to 5.5 V All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25C) Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25C) High output current 24 mA (@VCC = 3.0 V to 5.5 V)
HD74LVC74
Function Table
Inputs PR L H L H H H H H H: L: X: : : Q0: Note: CLR H L L H H H H H CK X X X L H D X X X H L X X X Outputs Q H L H H L Q0 Q0 Q0
*1
Q L H H *1 L H Q0 Q0 Q0
High level Low level Immaterial High to Low transition Low to high transition Level to Q before the indicated steady input conditions were established. 1. Q and Q will remain high as long as preset and clear are low, but Q and Q are unpredictable, if preset and clear go high simultaneously.
Pin Arrangement
1CLR
1
CK D PR CLR
14 VCC 13
2CLR
1D 2 1CK 3
Q
Q
12 2D 11 2CK
1PR 4 1Q 5 1Q 6 GND 7
D CK
10 2PR 9 2Q 8 2Q
CLR PR Q Q
(Top view)
2
HD74LVC74
Absolute Maximum Ratings
Item Supply voltage Input diode current Input voltage Output diode current Symbol VCC I IK VI I OK Ratings -0.5 to 6.0 -50 -0.5 to 6.0 -50 50 Output voltage Output current VCC, GND current / pin Storage temperature VO IO I CC or IGND Tstg 50 100 -65 to +150 Unit V mA V mA mA VO = -0.5 V VO = VCC +0.5 V VI = -0.5 V Conditions
-0.5 to VCC +0.5 V mA mA C
Note: The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time.
Recommended Operating Conditions
Item Supply voltage Symbol VCC Ratings 1.5 to 5.5 2.0 to 5.5 Input / output voltage VI VO Operating temperature Output current Ta I OH 0 to 5.5 0 to V CC -40 to 85 -12 -24 I OL
*1 *2
Unit V V V V C mA mA mA
Conditions Data retention At operation PR, CLR, CK, D Q, Q
VCC = 2.7 V VCC = 3.0 V to 5.5 V VCC = 2.7 V VCC = 3.0 V to 5.5 V
12 24
*2
mA ns/V
Input rise / fall time
t r , tf
10
Notes: 1. This item guarantees maximum limit when one input switches. Waveform : Refer to test circuit of switching characteristics. 2. duty cycle 50%
3
HD74LVC74
Electrical Characteristics
Ta = -40 to 85C Item Input voltage Symbol VCC (V) VIH 2.7 to 3.6 4.5 to 5.5 VIL 2.7 to 3.6 4.5 to 5.5 Output voltage VOH 2.7 to 5.5 2.7 3.0 3.0 4.5 VOL 2.7 to 5.5 2.7 3.0 4.5 Input current I IN I CC 0 to 5.5 5.5 3.0 to 3.6 Min 2.0 VCCx0.7 -- -- Max -- -- 0.8 VCCx0.3 Unit Test Conditions V V V V V V V V V V V V V A A A VIN = 5.5 V or GND VIN = VCC or GND VIN = one input at (VCC -0.6)V, other inputs at V CC or GND I OL = 100 A I OL = 12 mA I OL = 24 mA I OH = -24 mA I OH = -100 A I OH = -12 mA
VCC -0.2 -- 2.2 2.4 2.0 3.8 -- -- -- -- -- -- -- -- -- -- -- 0.2 0.4 0.55 0.55 5.0 20 500
Quiescent supply current I CC
4
HD74LVC74
Switching Characteristics
Ta = -40 to 85C Item Symbol VCC (V) 2.7 3.30.3 5.00.5 Propagation delay time t PLH t PHL 2.7 3.30.3 5.00.5 t PLH t PHL 2.7 3.30.3 5.00.5 Setup time t su 2.7 3.30.3 5.00.5 Hold time th 2.7 3.30.3 5.00.5 Pulse width tw 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 Recovery time t rec 2.7 3.30.3 5.00.5 Input capacitance Output capacitance CIN CO 2.7 2.7 Min Typ Max -- -- -- 9.0 8.0 6.5 9.0 8.0 6.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Unit From (Input) MHz MHz MHz ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns pF pF PR or CLR CK PR or CLR Q, Q CLK Q, Q To (Output)
Maximum clock frequency f max
150.0 -- 150.0 -- 150.0 -- -- 1.5 -- -- 1.5 -- 4.0 3.0 3.0 2.0 2.0 2.0 4.0 4.0 4.0 6.0 5.0 4.0 3.0 2.0 2.0 -- -- 6.0 5.0 4.0 6.5 5.0 4.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3.0 15.0
5
HD74LVC74
Test Circuit
Input VCC
Zout = 50 Input
See Function Table
Pulse Generator
PR D
Q CL = 50 pF 450 50 Scope
Output Q
Pulse Generator Zout = 50
CK CLR
Q CL = 50 pF 450 50 Scope
Output Q
Notes:
1. 2.
CL includes probe and jig capacitance. Test is put into the each flip flops.
6
HD74LVC74
Waveforms
tf Input CLR 90 % Vref 10 % tw tf 90 % Input PR t rec tr Input CK 90 % Vref 10 % tf 90 % Vref 10 % t w (H) Vref t w (L) Vref Vref Vref tr 90 % Vref 10 % 10 % tw t rec VIH Vref GND t h (H) t s (L) t h (L) VIH Vref Vref GND t PHL Vref t PLH VOH Output Q Vref Vref Vref VOL t PLH Output Q Vref t PHL Vref t PLH Vref t PHL VOH Vref VOL Symbol VIH Vref Notes: 1. 2. 3. VCC = 2.7 V, 3.30.3 V VCC = 5.00.5 V 2.7 V VCC 1.5 V 50%VCC VIH GND tr 90 % Vref 10 % VIH GND
t s (H) Input D 90 % Vref 10 % tr t PHL
90 % Vref 10 % tf t PLH
t r = 2.5 ns, tf = 2.5 ns Clock pulse input waveform : PRR = 10 MHz, duty cycle 50% Data input waveform : PRR = 5 MHz, duty cycle 50%
7
Unit: mm
5.00 5.30 Max 14 8 4.40 1 *0.22+0.08 -0.07 7 0.65 1.0 0.13 M 0.83 Max *0.17 0.05 0.15 0.04 1.10 Max 6.40 0.20 0 - 8 0.50 0.10 0.20 0.06
0.10
0.07 +0.03 -0.04
*Dimension including the plating thickness Base material dimension
Hitachi Code JEDEC EIAJ Weight (reference value)
TTP-14D -- -- 0.05 g
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party's rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi's sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor products.
Hitachi, Ltd.
Semiconductor & Integrated Circuits. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
URL
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Hitachi Semiconductor (America) Inc. 179 East Tasman Drive, San Jose,CA 95134 Tel: <1> (408) 433-1990 Fax: <1>(408) 433-0223 Hitachi Europe GmbH Electronic components Group Dornacher Strae 3 D-85622 Feldkirchen, Munich Germany Tel: <49> (89) 9 9180-0 Fax: <49> (89) 9 29 30 00 Hitachi Europe Ltd. Electronic Components Group. Whitebrook Park Lower Cookham Road Maidenhead Berkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000 Fax: <44> (1628) 778322 Hitachi Asia Pte. Ltd. 16 Collyer Quay #20-00 Hitachi Tower Singapore 049318 Tel: 535-2100 Fax: 535-1533 Hitachi Asia Ltd. Taipei Branch Office 3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105) Tel: <886> (2) 2718-3666 Fax: <886> (2) 2718-8180 Hitachi Asia (Hong Kong) Ltd. Group III (Electronic Components) 7/F., North Tower, World Finance Centre, Harbour City, Canton Road, Tsim Sha Tsui, Kowloon, Hong Kong Tel: <852> (2) 735 9218 Fax: <852> (2) 730 0281 Telex: 40815 HITEC HX
Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.

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